Okirt



J. L. JARDINE.

AND KINDRFT MATERIAL FOR PULP EXTRACTION, 61c.

1 2. APPLICATION FILED NOV. 26, I919- Mar. 22,

4 SHEETS-SHED I.

APPARATUS FOR PREPARING BAMBOO J. l.. JARDINE.

APPARATUS FOR PREPARING BAMBOO AND KINDRED MATEJHAL FOR PUILP EXTRACTION, ac.-

' APPLICATION f|LED-N0 V.26, m9.

1,372,5 1 2, Patented Mar, 22,1921.

4 SHEETS-SHEET L INYIEI TQR IMAM/W TM P J.- L.JA RDINE. APPARATUS FOR PREPARING BAMBOO AND KINDRED MATERIAL FOR PULP EXTRACTION, &c. APPLICATION FILED NOV-26.1919.

1,372,512. PatentedMar.22,192l.

4 SHEETS-SHEE'I 3.

IYNVENTOK 1. L. JARDINE. APPARATUS FOR PREPARING BAMBOO AND IIINDRED MATERIAL FOR P'ULP EXTRACTIOMfic.

APPLICATION FILED NOV- 26, I919.

Patented Mar. 22,1921.

4 SHEETS-SHEU 4.

INVENTOK VIII UNITED srares E O F LC g JAMES LOCKHART JARDINE, or rnNrouIK, SCOTLAND.

APPARATUS FORPREPARING BAMBOO AND KINDRED MATERIAL FOR I ULIP EXTRACTION, see. i i

To all whomc't may concern:.

Be it. known that I, JAMns LOOKHART JARDINE, asubject of the King of Great Britain and Ireland, and a \I'GSldGIltOf Peni cuik, Midlothian, Scotland, haveuinvented certain new and useful Improvements in Apparatus for Preparing Bamboo and Kindred Material for Pulp Extraction or forSplitting and Flattening Such Material, of which the following is the specification.

The invention has for its object to pro vide simple and effective meansfor splitting lengths'of bamboo and arranging the resultant half stems side by side at the proper distance apart for theirpresentation end on to crushingrolls, or alternatively, for splitting and flattening the stems. and brushing their outer surfaces.

An apparatus made according to the invention comprises essentially alhopper device to receive the lengths of bamboo, and

of such width that there is space for one length at a time at the bottom, a fixed knife opposite an aperture-atone end of the hopper, means for forcing the length of bamboo endwise against the knife so that it is longitudinally split, and means beyond the knife for receiving the split portionsand placing them atsuch adistance apart that they may then be presented to the crushing rolls-that istowsay, at such a lateral distance. apart that there is room forthe fiber to spread out laterally in the crushing operation without overlapping, or alternatively, after the lengthsof bamboo have been split, the resultant halves may be passed through two or more sets of pressure rollers to flatten them, and, in the inter-spacesbetween the pairs of rollers, brushes may be arranged for cleaning the outer-surface of thebamboo. In carrying out the invention, the means for forcing the lengths of bamboo against the knife may consist either of a plunger reciprocating in the bottom of the hopper and preferably operated by a quick-ret urn motion, or of a conveyer belt, chain or chains passing along the bottom of the hopper (and, it may be, forming the lower parts of the sides thereof) and having upstanding fingers adapted to engage the ends of the lengths of bamboo. Y

The device for placing the halved stems side by side and which is arranged beyond the knife, consists of a central upright par- Specification of Letters Patent.

Patented Mar. 22, 1921.

Applicationufiled.Nbvember 2c, 1919. Serial No. 340,873.

tition in line with the I knife and curved channel-like guides on'either side. A conveyeris arranged beneath the guides carrying feeding lingers which push forward the two sections of the bamboo stem. The half stems pass one on each side of the partition orguidevane, and when the stem has been completely pushed through the aperture in which is the knife, the half stems slide lat erally down the guides and heat the proper distance apart. The half stems are then pushed forward by conveyer fingers and may be fed directlyto crushing rolls for thorough disintegration and the production of a texture ready forpulp extraction, or alternatively, as hereinbefore described, flattened andbrushed. l

Two examples of the invention are shown on five accompanying sheets of explanatory drawings, Figures 111 and2 2, Sheets'l and 2, being respectively a plan and an elevation, the entrant end of the machine in each figurebeing shown on Sheet 2 and the con 'tinuation thereof on Sheet 1, while Figs. 3

and l are sectional: elevations to a larger scale on the lines a-'a and (2-6 Fig. 2, and sufficient to show one example. Figs. 5 5 and 6 6, Sheets 3 and 4, are views similar to Figs; 1 and Q, while Figs; .7 and 8, Sheet 5, I are sectional elevations on the lines f y, Fig. 6 showing the second example.

As shown inFigs. l to 4 there is provided a hopper A to receive the lengths of bamboo and ofsuoh a width that there is space for only one length of bamboo at a time atthe bottom of the hopper. At one end of the hopper and opposite an aperture in that end there is a fixed knife A Eachwlength of'balnboo is forced by a: conveyer B end wise through the aperture inthehopper A.

against the fixed knife A so that it is longitudin'ally split. The conveyer B is arranged below and lengthwise of the hopper and carries fingers B which work in the bottom of the hopper and engage the end of each length of bamboo as it falls to the bottom of the hopper.

After the bamboo has been longitudinally split by the knife A the halved stems pass one on either side of a central upright partition C having a conveyer C working below it. The partition C is arranged in line with the knife A and has curved channellike guides C on either side of it. After the 'H, H one on either side of bamboo has passed the knife A the conveyor C conveys it along the channel-like guides C until the halves are at a proper distance apart when they fall from the guides C and lie in channels D, D arranged one on either side of and beneath the level of the guides C Beneath the channels D, D there are arranged conveyors D D having fingers adapted to work in slots D, D in the bottom of the channels D, D and to engage the split stems. Opposite the forwardend of the channels D, D there are arranged two pairs of crushing rollers E, E which receive the half stems as they are fed forward by the conveyor fingers and so far crush them that they are in a condition for'treatment in apparatus such as that described in the specification of my former U. S. Patent application, Serial No. 280571, 4th March, 1919,.for the production of a material suitable for pulp extraction.

In the examples shown in Figs. 5 to 8,

the'bamboo as it falls to the bottom of the hopper A is forced against the fixed knife A by means of a reciprocating plunger G sliding on a guide G The plunger G is actuated from a disk G by means of a bellcrank lever G one arm of which has in it a slot G within which works a pin G on the disk G After'the bamboo passes the knife A the half stems are received in channels a central partition H? in line with the knife A As heroinbefore described the half stems are fed from the channels H, H to the crushing rollers E, E by means of the conveyors D D What I claim is '1'. In apparatus for preparing bamboo and kindred material for pulp extraction, or for splitting and flattening such mate rial, a feeding hopper arranged'to deliver bamboo stems one at a time in line with a fixed knife opposite one end of the feeding hopper, means for forcing the lengths of bamboo endwise against the knife, and

.means beyond the knife for receiving and spacing apart the split portions substantially parallel to each other and in the direction of the feed to the knife for presentation to crushing or like rolls.

2. In apparatus of the class described, a hopper adapted to receive the lengths of bamboo and of such a width that there is space for one length at a time at the bottom thereof, a fixed knife opposite an aperture at one end of the hopper, a conveyor beneath the hopper, fingers on the conveyor working within the hopper and engaging one end of the bamboo, a central upright partition in line with the knife, curved channel-like guides on the partition, a conveyor beneath the partition, a channel on either side of the partition, slots in the bottom of the channels, conveyors beneath the channels and fingers on the conveyors working in the slots in the channels, and engaging the split portions of the stems, as described.

3. The combination with apparatus as specified in claim 1, of crushing rolls arranged on axes substantially at right angles to the direction of the feed of the stems to the knife and spreader, and means for feeding the spaced stem splits to said rolls.

4. In apparatus for preparing canes for pulp extraction, a splitting knife, means for forcing a cane endwiso against the same to split the cane, flattening rolls, and means for delivering cane splits thereto in laterally spaced and substantially parallel relation to each other.

5. In apparatus for preparing canes for pulp extraction, a cane hopper having a bottom width only slightly in excess of the thickness of a single cane, a splitting knife arranged at the delivery end of the hopper, and means for engaging and forcing the bot tom cane in the hopper against said knife to split the cane, flattening rolls, and means for delivering thereto the cane splits in spaced and substantially parallel relation.

6. In apparatus for preparing canes for pulp extraction, a splitting knife, means for forcing a cane endwise against the same to split the cane, guide means for spreading apart the cane splits, flattening rolls, and means for feeding the spread and substantially parallel cane splits to the flattening rolls.

In testimony whereof I have signed my name to this specification.

JAMES LOCKI-IART J ARDINE. 

